Annotation of src/usr.bin/nfsstat/nfsstat.c, Revision 1.3
1.2 niklas 1: /* $OpenBSD$ */
2: /* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $ */
3:
1.1 deraadt 4: /*
5: * Copyright (c) 1983, 1989, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Rick Macklem at The University of Guelph.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: static char copyright[] =
42: "@(#) Copyright (c) 1983, 1989, 1993\n\
43: The Regents of the University of California. All rights reserved.\n";
44: #endif /* not lint */
45:
46: #ifndef lint
1.2 niklas 47: #if 0
48: static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93";
49: static char *rcsid = "$NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $";
50: #else
51: static char *rcsid = "$OpenBSD$";
52: #endif
1.1 deraadt 53: #endif /* not lint */
54:
55: #include <sys/param.h>
56: #include <sys/mount.h>
1.2 niklas 57: #include <sys/sysctl.h>
58: #include <nfs/rpcv2.h>
59: #include <nfs/nfsproto.h>
1.1 deraadt 60: #include <nfs/nfs.h>
61: #include <signal.h>
62: #include <fcntl.h>
63: #include <ctype.h>
64: #include <errno.h>
65: #include <kvm.h>
66: #include <nlist.h>
67: #include <unistd.h>
68: #include <stdio.h>
69: #include <stdlib.h>
70: #include <string.h>
1.3 ! deraadt 71: #include <limits.h>
1.1 deraadt 72: #include <paths.h>
1.2 niklas 73: #include <err.h>
1.1 deraadt 74:
75: struct nlist nl[] = {
76: #define N_NFSSTAT 0
77: { "_nfsstats" },
78: "",
79: };
80: kvm_t *kd;
81:
82: void intpr(), printhdr(), sidewaysintpr(), usage();
83:
84: main(argc, argv)
85: int argc;
86: char **argv;
87: {
88: extern int optind;
89: extern char *optarg;
90: u_int interval;
91: int ch;
92: char *memf, *nlistf;
1.3 ! deraadt 93: char errbuf[_POSIX2_LINE_MAX];
1.1 deraadt 94:
95: interval = 0;
96: memf = nlistf = NULL;
97: while ((ch = getopt(argc, argv, "M:N:w:")) != EOF)
98: switch(ch) {
99: case 'M':
100: memf = optarg;
101: break;
102: case 'N':
103: nlistf = optarg;
104: break;
105: case 'w':
106: interval = atoi(optarg);
107: break;
108: case '?':
109: default:
110: usage();
111: }
112: argc -= optind;
113: argv += optind;
114:
115: #define BACKWARD_COMPATIBILITY
116: #ifdef BACKWARD_COMPATIBILITY
117: if (*argv) {
118: interval = atoi(*argv);
119: if (*++argv) {
120: nlistf = *argv;
121: if (*++argv)
122: memf = *argv;
123: }
124: }
125: #endif
126: /*
127: * Discard setgid privileges if not the running kernel so that bad
128: * guys can't print interesting stuff from kernel memory.
129: */
130: if (nlistf != NULL || memf != NULL)
131: setgid(getgid());
132:
133: if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) {
134: fprintf(stderr, "nfsstat: kvm_openfiles: %s\n", errbuf);
135: exit(1);
136: }
137: if (kvm_nlist(kd, nl) != 0) {
138: fprintf(stderr, "nfsstat: kvm_nlist: can't get names\n");
139: exit(1);
140: }
141:
142: if (interval)
143: sidewaysintpr(interval, nl[N_NFSSTAT].n_value);
144: else
145: intpr(nl[N_NFSSTAT].n_value);
146: exit(0);
147: }
148:
149: /*
150: * Print a description of the nfs stats.
151: */
152: void
153: intpr(nfsstataddr)
154: u_long nfsstataddr;
155: {
156: struct nfsstats nfsstats;
157:
158: if (kvm_read(kd, (u_long)nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)) < 0) {
159: fprintf(stderr, "nfsstat: kvm_read failed\n");
160: exit(1);
161: }
162: printf("Client Info:\n");
163: printf("Rpc Counts:\n");
164: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
165: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
166: "Write", "Create", "Remove");
167: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
168: nfsstats.rpccnt[NFSPROC_GETATTR],
169: nfsstats.rpccnt[NFSPROC_SETATTR],
170: nfsstats.rpccnt[NFSPROC_LOOKUP],
171: nfsstats.rpccnt[NFSPROC_READLINK],
172: nfsstats.rpccnt[NFSPROC_READ],
173: nfsstats.rpccnt[NFSPROC_WRITE],
174: nfsstats.rpccnt[NFSPROC_CREATE],
175: nfsstats.rpccnt[NFSPROC_REMOVE]);
176: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
177: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
1.2 niklas 178: "Readdir", "RdirPlus", "Access");
1.1 deraadt 179: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
180: nfsstats.rpccnt[NFSPROC_RENAME],
181: nfsstats.rpccnt[NFSPROC_LINK],
182: nfsstats.rpccnt[NFSPROC_SYMLINK],
183: nfsstats.rpccnt[NFSPROC_MKDIR],
184: nfsstats.rpccnt[NFSPROC_RMDIR],
185: nfsstats.rpccnt[NFSPROC_READDIR],
1.2 niklas 186: nfsstats.rpccnt[NFSPROC_READDIRPLUS],
187: nfsstats.rpccnt[NFSPROC_ACCESS]);
188: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
189: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
1.1 deraadt 190: "GLease", "Vacate", "Evict");
1.2 niklas 191: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
192: nfsstats.rpccnt[NFSPROC_MKNOD],
193: nfsstats.rpccnt[NFSPROC_FSSTAT],
194: nfsstats.rpccnt[NFSPROC_FSINFO],
195: nfsstats.rpccnt[NFSPROC_PATHCONF],
196: nfsstats.rpccnt[NFSPROC_COMMIT],
1.1 deraadt 197: nfsstats.rpccnt[NQNFSPROC_GETLEASE],
198: nfsstats.rpccnt[NQNFSPROC_VACATED],
199: nfsstats.rpccnt[NQNFSPROC_EVICTED]);
200: printf("Rpc Info:\n");
201: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
202: "TimedOut", "Invalid", "X Replies", "Retries", "Requests");
203: printf("%9d %9d %9d %9d %9d\n",
204: nfsstats.rpctimeouts,
205: nfsstats.rpcinvalid,
206: nfsstats.rpcunexpected,
207: nfsstats.rpcretries,
208: nfsstats.rpcrequests);
209: printf("Cache Info:\n");
210: printf("%9.9s %9.9s %9.9s %9.9s",
211: "Attr Hits", "Misses", "Lkup Hits", "Misses");
212: printf(" %9.9s %9.9s %9.9s %9.9s\n",
213: "BioR Hits", "Misses", "BioW Hits", "Misses");
214: printf("%9d %9d %9d %9d",
215: nfsstats.attrcache_hits, nfsstats.attrcache_misses,
216: nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
217: printf(" %9d %9d %9d %9d\n",
218: nfsstats.biocache_reads-nfsstats.read_bios,
219: nfsstats.read_bios,
220: nfsstats.biocache_writes-nfsstats.write_bios,
221: nfsstats.write_bios);
222: printf("%9.9s %9.9s %9.9s %9.9s",
223: "BioRLHits", "Misses", "BioD Hits", "Misses");
224: printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
225: printf("%9d %9d %9d %9d",
226: nfsstats.biocache_readlinks-nfsstats.readlink_bios,
227: nfsstats.readlink_bios,
228: nfsstats.biocache_readdirs-nfsstats.readdir_bios,
229: nfsstats.readdir_bios);
230: printf(" %9d %9d\n",
231: nfsstats.direofcache_hits, nfsstats.direofcache_misses);
232: printf("\nServer Info:\n");
233: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
234: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
235: "Write", "Create", "Remove");
236: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
237: nfsstats.srvrpccnt[NFSPROC_GETATTR],
238: nfsstats.srvrpccnt[NFSPROC_SETATTR],
239: nfsstats.srvrpccnt[NFSPROC_LOOKUP],
240: nfsstats.srvrpccnt[NFSPROC_READLINK],
241: nfsstats.srvrpccnt[NFSPROC_READ],
242: nfsstats.srvrpccnt[NFSPROC_WRITE],
243: nfsstats.srvrpccnt[NFSPROC_CREATE],
244: nfsstats.srvrpccnt[NFSPROC_REMOVE]);
245: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
246: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
1.2 niklas 247: "Readdir", "RdirPlus", "Access");
1.1 deraadt 248: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
249: nfsstats.srvrpccnt[NFSPROC_RENAME],
250: nfsstats.srvrpccnt[NFSPROC_LINK],
251: nfsstats.srvrpccnt[NFSPROC_SYMLINK],
252: nfsstats.srvrpccnt[NFSPROC_MKDIR],
253: nfsstats.srvrpccnt[NFSPROC_RMDIR],
254: nfsstats.srvrpccnt[NFSPROC_READDIR],
1.2 niklas 255: nfsstats.srvrpccnt[NFSPROC_READDIRPLUS],
256: nfsstats.srvrpccnt[NFSPROC_ACCESS]);
257: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
258: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
1.1 deraadt 259: "GLease", "Vacate", "Evict");
1.2 niklas 260: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
261: nfsstats.srvrpccnt[NFSPROC_MKNOD],
262: nfsstats.srvrpccnt[NFSPROC_FSSTAT],
263: nfsstats.srvrpccnt[NFSPROC_FSINFO],
264: nfsstats.srvrpccnt[NFSPROC_PATHCONF],
265: nfsstats.srvrpccnt[NFSPROC_COMMIT],
1.1 deraadt 266: nfsstats.srvrpccnt[NQNFSPROC_GETLEASE],
267: nfsstats.srvrpccnt[NQNFSPROC_VACATED],
268: nfsstats.srvrpccnt[NQNFSPROC_EVICTED]);
269: printf("Server Ret-Failed\n");
270: printf("%17d\n", nfsstats.srvrpc_errs);
271: printf("Server Faults\n");
272: printf("%13d\n", nfsstats.srv_errs);
273: printf("Server Cache Stats:\n");
274: printf("%9.9s %9.9s %9.9s %9.9s\n",
275: "Inprog", "Idem", "Non-idem", "Misses");
276: printf("%9d %9d %9d %9d\n",
277: nfsstats.srvcache_inproghits,
278: nfsstats.srvcache_idemdonehits,
279: nfsstats.srvcache_nonidemdonehits,
280: nfsstats.srvcache_misses);
281: printf("Server Lease Stats:\n");
282: printf("%9.9s %9.9s %9.9s\n",
283: "Leases", "PeakL", "GLeases");
284: printf("%9d %9d %9d\n",
285: nfsstats.srvnqnfs_leases,
286: nfsstats.srvnqnfs_maxleases,
287: nfsstats.srvnqnfs_getleases);
1.2 niklas 288: printf("Server Write Gathering:\n");
289: printf("%9.9s %9.9s %9.9s\n",
290: "WriteOps", "WriteRPC", "Opsaved");
291: printf("%9d %9d %9d\n",
292: nfsstats.srvvop_writes,
293: nfsstats.srvrpccnt[NFSPROC_WRITE],
294: nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes);
1.1 deraadt 295: }
296:
297: u_char signalled; /* set if alarm goes off "early" */
298:
299: /*
300: * Print a running summary of nfs statistics.
301: * Repeat display every interval seconds, showing statistics
302: * collected over that interval. Assumes that interval is non-zero.
303: * First line printed at top of screen is always cumulative.
304: */
305: void
306: sidewaysintpr(interval, off)
307: u_int interval;
308: u_long off;
309: {
310: struct nfsstats nfsstats, lastst;
311: int hdrcnt, oldmask;
312: void catchalarm();
313:
314: (void)signal(SIGALRM, catchalarm);
315: signalled = 0;
316: (void)alarm(interval);
317: bzero((caddr_t)&lastst, sizeof(lastst));
318:
319: for (hdrcnt = 1;;) {
320: if (!--hdrcnt) {
321: printhdr();
322: hdrcnt = 20;
323: }
324: if (kvm_read(kd, off, (char *)&nfsstats, sizeof nfsstats) < 0) {
325: fprintf(stderr, "nfsstat: kvm_read failed\n");
326: exit(1);
327: }
328: printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n",
1.2 niklas 329: nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR],
330: nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP],
331: nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK],
332: nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ],
333: nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE],
334: nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME],
335: nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS],
336: (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR])
337: +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS]));
1.1 deraadt 338: printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n",
1.2 niklas 339: nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR],
340: nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP],
341: nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK],
342: nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ],
343: nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE],
344: nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME],
345: nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS],
346: (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR])
347: +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
1.1 deraadt 348: lastst = nfsstats;
349: fflush(stdout);
350: oldmask = sigblock(sigmask(SIGALRM));
351: if (!signalled)
352: sigpause(0);
353: sigsetmask(oldmask);
354: signalled = 0;
355: (void)alarm(interval);
356: }
357: /*NOTREACHED*/
358: }
359:
360: void
361: printhdr()
362: {
363: printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n",
364: "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename",
1.2 niklas 365: "Access", "Readdir");
1.1 deraadt 366: fflush(stdout);
367: }
368:
369: /*
370: * Called if an interval expires before sidewaysintpr has completed a loop.
371: * Sets a flag to not wait for the alarm.
372: */
373: void
374: catchalarm()
375: {
376: signalled = 1;
377: }
378:
379: void
380: usage()
381: {
382: (void)fprintf(stderr,
383: "usage: nfsstat [-M core] [-N system] [-w interval]\n");
384: exit(1);
385: }
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